condition	mean	min	max
4 h after light	8987.3705555	7939.578211	10035.1629
8 h after light	7271.903883999999	6883.812669	7659.995099
12 h after light	8940.95409	8281.093071	9600.815109
4 h after dark	8683.871839	8508.408815	8859.334863
8 h after dark	7987.391959500001	7136.404647	8838.379272
12 h after dark	9746.253397	9746.253397	9746.253397